Link for chains.



No. 69H90. Patented Apr. 8, |902.

T. G. AULTMAN.

LINK FUR CHAINS.

(Application filed May 11, 1901.)

,PERB YY1 6 y UNTTn STATES PATENT OFFICE.

THOMAS G. AULTMAN, OF FAIRIWIONT, VEST VIRGINIA, ASSIGNOR TO THE WAGNER-PALMROS MANUFACTURING COMPANY, OF FAIRMONT, WEST VIRGINIA, A CORPORATION OF WEST VIRGINIA.

LINK FOR CHAINS.

SPECIFICATION forming part of Letters latent No. 697,190, dated April 8, 1902.

Application tiled May 11,1901. Serial No. 59,736. (No model.)

To all whom, it may h/067%:

Be it known that I, THOMAS G. AULTMAN, a citizen of the United States, residing at Fairmont, in the county of Marion and State of iVest Virginia, have invented certain new and useful Improvements in Links for Chains and other Purposes, of which the followingis a specification, reference being had therein to the accompanying drawings.

to Figure l is a plan view of a portion of a chain embodying my improvements. Fig. 2 is`a longitudinal section of the same. Fig. 3 is a view partly in side elevation, partly in vertical section. Fig. 4 is a longitudinal section of one of the side bars. Fig. 5 is a top view of the other side bar and of the two end bars which are cast integral therewith. Fig. (i shows the pintle by which the side bars can be fastened together.

zo This invention relates to improvements in chains of the sort used for transmitting power, for conveying, for elevating, and the like.

The object is to provide aV chain which can be built up of but few parts, in which ex- 2 5 tended articulating surfaces shall be provided, Whose links can be readily coupled together or separated, if need be, and which shall have a strength greater than is incident to those of the same general character with 3o which I am acquainted.

When the chain is made* in the way illustrated in the drawings, it consists of links of two sorts, those of one sort alternating with those of the other.

A indicates the links of one of the kinds,

and the intermediate alternate links are indicated by D. The links A are each formed in two principal parts, one indicated by A' and the other by B. The part A has the side 4o bar proper and integralV therewith the two laterally-projecting end bars o/ d. The opposite side barB is substantially dat, it being more or less plate-like, as shown at b, and having the sockets or cavities b and the apertures b2. The cavities b are of the same diameter and conformation as are the free ends of the end bars a, and the latter can be fitted into them snugly, so as to provide an interlocking engagement of the side bars B with 5o the two end bars.

The intermediate links D are each formed with the central shank part CZ and with the expanded heads d", which are provided with the apertures d2 of a diameter such that they can receive and be fitted to the end bars d' of 55 the adjacent links. The articulating of the links occurs at the engaging surfaces of the heads d and the end bars a'.

' XVhen the parts A' and B are fastened together, they provide an exceedingly strong link for connecting together` the two neighboring links D D, much stronger than if the bar B were also cast integral with the end bars a. The cavities b are of such depth as to provide a firm seating for the ends of the end bars a, and the Working strains are transmitted in such Way as to avoid fracture.

By casting the two end bars on integral with the side bar A' the cost of manufacture is greatly reduced and the labor incident to 7o handling the parts and to building up the chain isalso reduced, while at the same time, as above described, the chain when the parts are put together is possessed of greatly-increased strength.

The two side elements of the links A can be secured together in any suitable way. At present I prefer to follow the plan shownthat is to say, to employ riveted pins C, the body parts c of which can be passed through the aforesaid apertures b2 in the bar B and through apertures a2 formed in the end bars a and in the side bar of the part A, and each pin having initially sufficient metal at c2 to permit it to be upset or riveted, as at c c'. 85

The links can be made of any suitable dimensions. The one indicated by A can be so shaped that the sprocket-teeth of the driving or guiding Wheel can enter the aperture between the adjacent ends of the links D D,or 9o the said teeth can engage with the ends of the links A. Again, the links D can be of different shape and with sprocket-apertures, if prelferred.

having interlocking engagement detachably :oo

with the ends of thesaid end bars, and means independent of the end bars for connecting said side bars together'.

2. A connecting link or element for chains and other structures comprising a side bar formed with two integral inwardly-projecting end bars, each end bar having a transverse aperture and an opposing side bar having sockets or cavities in its inner surface to detaohably engage positively with the ends of the said end bars, and having apertures respeetively registering with the apertures in the end bars, and pins passing through the said end bars and separable side bars, substantially as set forth.

3. A chain for transmitting power and other THOMAS G. AULTMAN.

Vitnesses:

FRANK GETHING, FRANK HosTLER. 

